The right whale is the third largest whale in the world, such as the North Atlantic right whale. It is a whale second only to blue whales and fin whales, with a body length of18m and a weight of over100t. Although it weighs half as much as the blue whale, few people will compare it with the blue whale. First of all, they look uncomfortable.

Everyone who sees right whales will notice their "shortcomings" first. There is a white area on the right whale's head, which looks a bit like calluses in human hands, but in fact this area is actually a community of marine parasites (mainly barnacles and whale lice) attached to the right whale (there is no uncomfortable picture in this article). These marine parasites like to live on many kinds of baleen whales, such as right whales. Once they are caught,